Home / 208,806.95-288,153.78-113,313.65

Finding the Fourth Proportional to 208,806.95, 288,153.78 and 113,313.65

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Solution

The fourth proportional to 208,806.95, 288,153.78 and 113,313.65 is: 156,372.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,806.95 : 288,153.78 = 113,313.65 : x
  2. Step 2: Convert to fraction form
    208,806.95/288,153.78 = 113,313.65/x
  3. Step 3: Cross multiply
    208,806.95x = 288,153.78 × 113,313.65
  4. Step 4: Simplify right side
    208,806.95x = 32,651,755,132.33
  5. Step 5: Solve for x
    x = 32,651,755,132.33/208,806.95
  6. Step 6: Final answer
    x = 156,372.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.